Question

calculati
102+325:2=
calculati media aritmetici a nr 102,3,5,458
dau coroana

Answer 1

$\bold{1.} \ 102+325:2=102+162,5=\boxed{264,5}; \\ \bold{2.} \ M_{a} = \frac{102+3+5+458}{4} = \frac{105+5+458}{4} = \frac{110+458}{4} =\boxed{ \frac{568}{4} =\boxed{\bold{142}}}.$

Answer 2

102+325:2=102+162,5+102=264,5
(102+3+5+458):4=(110+458):4=568:4=142